A frictionless, electrically insulating ramp makes an angle of 0 = 37° above the horizontal. A small charged ball with mass m = 120g and charge q = -28 μC is fixed in place at the bottom of the ramp. An identical ball with the same mass and charge rests at equilibrium on the ramp, some height h above the ground. What is h? For the limit check, investi- gate what happens to h if the ramp becomes extremely steep (i.e., 90°). Initial Equations Initial Equation(s): Symbolic Answer: Units Check: Limits Check: Neatness: Total: Correct Answer: Algebra Work (Symbols only. Don't plug in any numbers yet.) Symbolic Answer: Unit Check 0 0.5 1 0 1 0 0.5 0 0.5 1 -2 -1 0 Y N Limit Check a) As 90°, what limit does h approach? b) Why does the result make physical sense? Numerical Answer: (Obtain this by plugging numbers into your symbolic answer.)